In the Dutch landscape a tendency is going on of scaling down in open areas and scaling up in enclosed areas. The characteristic scale diversity and extremity contribute less and less to the identity of the different landscape types. The governmental report 'Nota Landschap' ( 1992) introduced the identity concept as a mean to finish the uniformization process of the rural landscape. The interpretation of the concept is not clear. Landscape design stresses the unique structure of the characteristic features. Environmental psychology and human geography stress the meaning of a place for people. However, any agreement does not exist about the way of filling in and the application of the identity concept in landscape planning. Research of environmental psychology in the context of landscape design could ' den the concept of identity. The design and the perception research will be carried out in two regions who represent the morphologic diversity and the different scales in the Dutch landscape. Both areas have been subjected to (drastic) changes in the scale of the landscape. Processes of scaling down occur in the northern part of Westergo, an open sea clay area. Processes of scaling-up occur ill the central part of the Achterhoek, an enclosed sandy area. The design consists of two parts: the identification of the landscape characteristics by the researcher, and the design and simulation of realistic landscape changes. The perception part focuses on the landscape perception by human; the identification of the landscape characteristics and the simulated landscape changes will be researched. The first case study is carried out in the open landscape of Westergo. More and more groups of wind turbines are appearing everywhere. Different configurations and locations of 500 kW wind turbines were simulated. The variables for the computer simulations were: the number of the wind turbines, the balance between a group of wind turbines and a group of landscape elements, the viewing distance to the wind turbines, and the location of 100 wind turbines (spreading or clustering). A small group of farmers and inhabitants of the villages did evaluate the photos. Some examples of the computer simulations, some results of the evaluation and a few recommendations for the planning policy will be presented on the poster.